California's most important environmental law, the California Environmental Environmental Quality Act (CEQA), is under attack, and activists are trying to make sure the act will still hold sway in San Francisco. CEQA requires corporations and landholders to provide public information about potential environmental impacts of their projects in advance. A statewide coalition recently blocked attempts to weaken CEQA at the state level, but now San Francisco Supervisor Scott Wiener has proposed to weaken CEQA locally. Supervisor Jane Kim has proposed competing legislation which is more CEQA friendly.